| Interface | Description | 
|---|---|
| Predicate<T> | 
| Class | Description | 
|---|---|
| IterableUtils | |
| MultiIterator<E> | A  MultiIteratorcollects a sequence of simple iterators in order to provide a
 convenient way to navigate through each of them. | 
| Strategy<I,O> | |
| StringBuilderIndent | Offers the same services as a  StringBuilder(via
 delegation), but adds a few methods to manage indentation levels. | 
| StringUtils |